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The index varies over time with no particular periodicity, and is characterized by non-seasonal sea-level pressure anomalies of one sign in the Arctic, balanced by anomalies of opposite sign centered at about 37–45° N. [1] The North Atlantic oscillation (NAO) is a close relative of the Arctic oscillation. There is debate over whether one or ...
Arctic haze is the phenomenon of a visible reddish-brown springtime haze in the atmosphere at high latitudes in the Arctic due to anthropogenic [1] air pollution.A major distinguishing factor of Arctic haze is the ability of its chemical ingredients to persist in the atmosphere for significantly longer than other pollutants.
Every September, scientists measure the extent of Arctic sea ice at its seasonal minimum. This year, sea ice was the sixth-lowest in the 45 years since satellites began measuring; sea ice extents ...
ARLINGTON, Va. − Winter was making its ugly presence felt across most of the nation Sunday as a potent arctic blast fueled some of the coldest temperatures this winter season, with tens of ...
The Arctic Ocean is the mass of water positioned approximately above latitude 65° N. Arctic Sea Ice refers to the area of the Arctic Ocean covered by ice. The Arctic sea ice minimum is the day in a given year when Arctic sea ice reaches its smallest extent, occurring at the end of the summer melting season, normally during September.
The magnitude and extent of the Arctic air will build into the first full week of January and linger through the middle of the month and will, at times, affect more than 250 million people living ...
Record-low temperatures chilled New England on Friday, leading to a cold-weather phenomenon that's rarely seen in the United States. A handful of folks in Burlington, Vermont, caught sight of a ...
The Arctic ice pack is the sea ice cover of the Arctic Ocean and its vicinity. The Arctic ice pack undergoes a regular seasonal cycle in which ice melts in spring and summer, reaches a minimum around mid-September, then increases during fall and winter. Summer ice cover in the Arctic is about 50% of winter cover. [1]